CloudKit: Query for publicDB not working without iCloud login on Simulator

Originator:mc
Number:rdar://24758365 Date Originated:2016-02-21
Status:Open Resolved:
Product:iOS SDK Product Version:9.2.1 & 9.3 Beta 3
Classification:Serious Bug Reproducible:Always
 
Whenever I do a CKDatabase().performQuery, I get 2 kinds of CKError: 

"Internal Error" (1/1000); "Received a didCompleteWithError without receiving a response from the server"

or

"Internal Error" (1/4000); "Couldn't send a valid signature”

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